Plasters
Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate) whether or not coloured, with or without small quantities of accelerators or retarders. > Plasters > Plasters
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2520.20
Calcined Gypsum Plaster
Calcined gypsum plaster, commonly known as plaster of Paris, is produced by heating gypsum to drive off water, yielding a fine powder that sets when mixed with water. It falls under tariff item 2520.20.00 as a plaster consisting of calcined gypsum, with no processing beyond calcination.
2520.20.00Colored Modeling Plaster
Colored modeling plaster is calcined gypsum with added pigments, used for sculpting, casting, and crafts. The pigments are considered coloring only, and the product remains a plaster under tariff item 2520.20.00, as it is not processed beyond calcination and coloring.
2520.20.00Dental Plaster Type III
Dental plaster Type III is a high-strength calcined gypsum formulation with controlled accelerators for dental models and casts. It qualifies under tariff item 2520.20.00 as a plaster consisting of calcined gypsum, with small quantities of accelerators permitted by the item's description.
2520.20.00High-Strength Gypsum Plaster
High-strength gypsum plaster is made from specially calcined gypsum with accelerators to achieve superior compressive strength for precision tooling and patterns. It remains a plaster under tariff item 2520.20.00, as the processing is limited to calcination and the addition of small quantities of accelerators.
2520.20.00Plaster of Paris Powder
Plaster of Paris powder is the classic beta-hemihydrate calcined gypsum used for casts, molds, and sculptures. It falls directly under tariff item 2520.20.00 as a plaster consisting of calcined gypsum, with no added accelerators or retarders beyond trace amounts.
2520.20.00Setting-Type Joint Compound Base
Setting-type joint compound base is calcined gypsum plaster used as the primary ingredient in drywall finishing compounds. When imported as bulk powder before mixing with fillers and polymers, it falls under tariff item 2520.20.00 as a plaster, provided it is not yet a prepared compound.
2520.20.00White Architectural Plaster
White architectural plaster is a calcined gypsum product designed for interior wall finishing and decorative molding. It qualifies under tariff item 2520.20.00 as a plaster consisting of calcined gypsum, with minimal additives and no processing beyond calcination and coloring.